Provide a mechanism for retaining file

[phillord]

The default behaviour is nice for writing tests since everything is cleaned up afterwards. But painful if the tests fail -- it becomes hard to debug because it's not possible to see what is in the file that you've just deleted.

It would be nice to have a mechanism to stop file deletions after, say, a panic.

[L-as]

I don't think this is the desired behavior for every user, but I think making an environment variable for this would be nice. Something like RS_MKTEMP_ALWAYS_RELEASE maybe?

[phillord]

Yes, that would work; I'd have to rerun tests after failure, so it's not quite as nice as non-deletion on unsuccessful exist, but it would be a lot easier than my current solution (changing the temp file constructor for a named one).

[L-as]

Can't you use the release method in stead of that?

[phillord]

Oh, that prevents deletion. I had assumed that "release" was equivalent to the variable going out of scope, but I see from the example, that this is wrong. My apologies for the noise.